Install Proton VPN

wget https://repo.protonvpn.com/debian/dists/stable/main/binary-all/protonvpn-stable-release_1.0.4_all.deb -P /tmp/
sudo dpkg -i /tmp/protonvpn-stable-release_*_all.deb
sudo apt update
sudo apt install -y proton-vpn-gnome-desktop